If you only want enough to finish your first game, remember five ideas: draw only unused edges; Blue moves first; closing a box claims it and grants another turn; when every edge is filled, compare box counts; equal counts are a draw.

Start in 30 seconds

  1. Blue always opens. If you sit Red against AI, the AI draws the first edge.
  2. On your turn, tap an unused edge between two dots. Already-drawn edges are never legal.
  3. When all four sides of a square are filled, that box is yours and you move again.
  4. If one edge closes several boxes at once, you claim them all and keep moving.
  5. When every edge is drawn, the higher box count wins; equal counts are a draw.

Board setup

The board is a grid of dots linked by edges. This site defaults to 5×5 boxes (6×6 dots). Blue opens; Red replies. The interface shows each side’s claimed boxes.

Dots and Boxes opening: a 5×5 box grid with Blue to move
The live opening: an empty grid, Blue to draw the first edge.

How edges work

Tap an empty edge between two dots to claim it. You cannot redraw an edge, and you draw only one edge per turn unless you just claimed a box and are using the extra turn.

Legal moves only ask whether that edge is still free. The board blocks already-drawn edges so they never spend the turn.

Claims and extra turns

When a box’s four sides are complete, it belongs to the player who closed it, and that player moves again. If one edge finishes several boxes, all of them are claimed and play continues until you draw an edge that does not close a new box.

That is why long chains appear in the midgame and endgame: whoever is forced to open a chain often hands the opponent a run of boxes.

Winning and draws

After every edge is drawn, compare claimed boxes. The higher count wins; equal counts are a draw. A 5×5 board has 25 boxes, so one-box wins are common. Players may also agree a draw, and online rooms allow resigning.

How it works on this site

Illegal taps are blocked for you. Against AI you may sit Blue or Red; use hints when you want a nudge, undo if you want to take back your move and the reply, and replay after the game to review the turning point. Two-player mode shares one device, and online rooms let the host choose Blue or Red first on a fixed 5×5 board.

If you get stuck mid-game, think in this order: is it my turn, does this edge gift a third side, and where should the extra turn go after a claim? If you can answer those, you can usually finish the first game without trouble. Once the basics feel familiar, continue with Dots and Boxes tips.

FAQ

Who moves first in Dots and Boxes?

Blue always opens. Against AI you may sit Blue or Red; if you sit Red, the AI draws the opening edge.

Why do I move again after claiming a box?

That is the rule: closing a box grants an extra turn, which is how long chains can be taken in one go.

Can a game be a draw?

Yes. Equal box counts are recorded as a draw.

Is this the same as other grid doodle games?

This site plays standard Dots and Boxes: draw edges on a grid, claim boxes, move again after a claim, and win by the higher box count.